/*
 * Copyright 2016 Azavea
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package geotrellis.store.hadoop

import org.apache.hadoop.conf.Configuration

import java.io.{ObjectInputStream, ObjectOutputStream}

/** From Spark codebase. Allows us to use the Hadoop Configuration in serializable tasks */
case class SerializableConfiguration(@transient var value: Configuration) extends Serializable {
  private def writeObject(out: ObjectOutputStream): Unit = {
    out.defaultWriteObject()
    value.write(out)
  }

  private def readObject(in: ObjectInputStream): Unit = {
    value = new Configuration(false)
    value.readFields(in)
  }
}
